Abstract: On account of limitations of traditional agitators with individual or multiple impellers mounted on a single shaft，the emergence of combined double-shaft agitator is analyzed，and the related research and development are described. The working range for horizontal and vertical combined double-shaft agitators is discussed. Finally the development and application prospect of combined double-shaft agitators are addressed.

摘要： 鉴于传统的单一桨型搅拌器和单轴组合式搅拌器都具有一定的局限性，分析了开发双轴组合式搅拌器的必要性，并介绍了国内外该类型搅拌器的研究进展，概述了卧式和立式双轴组合式搅拌器的适用范围，最后对双轴组合式搅拌器的发展与应用前景进行了展望。